160 lines
3.7 KiB
JavaScript
160 lines
3.7 KiB
JavaScript
import Report from "admin/models/report";
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import Component from "@ember/component";
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import discourseDebounce from "discourse-common/lib/debounce";
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import loadScript from "discourse/lib/load-script";
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import { makeArray } from "discourse-common/lib/helpers";
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import { number } from "discourse/lib/formatter";
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import { schedule } from "@ember/runloop";
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import { bind } from "discourse-common/utils/decorators";
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export default Component.extend({
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classNames: ["admin-report-chart", "admin-report-stacked-chart"],
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didInsertElement() {
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this._super(...arguments);
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window.addEventListener("resize", this._resizeHandler);
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},
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willDestroyElement() {
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this._super(...arguments);
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window.removeEventListener("resize", this._resizeHandler);
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this._resetChart();
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},
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didReceiveAttrs() {
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this._super(...arguments);
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discourseDebounce(this, this._scheduleChartRendering, 100);
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},
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@bind
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_resizeHandler() {
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discourseDebounce(this, this._scheduleChartRendering, 500);
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},
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_scheduleChartRendering() {
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schedule("afterRender", () => {
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if (!this.element) {
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return;
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}
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this._renderChart(
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this.model,
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this.element.querySelector(".chart-canvas")
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);
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});
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},
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_renderChart(model, chartCanvas) {
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if (!chartCanvas) {
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return;
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}
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const context = chartCanvas.getContext("2d");
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const chartData = makeArray(model.chartData || model.data).map((cd) => {
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return {
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label: cd.label,
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color: cd.color,
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data: Report.collapse(model, cd.data),
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};
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});
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const data = {
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labels: chartData[0].data.mapBy("x"),
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datasets: chartData.map((cd) => {
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return {
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label: cd.label,
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stack: "pageviews-stack",
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data: cd.data,
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backgroundColor: cd.color,
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};
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}),
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};
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loadScript("/javascripts/Chart.min.js").then(() => {
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this._resetChart();
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this._chart = new window.Chart(context, this._buildChartConfig(data));
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});
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},
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_buildChartConfig(data) {
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return {
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type: "bar",
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data,
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options: {
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responsive: true,
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maintainAspectRatio: false,
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responsiveAnimationDuration: 0,
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hover: { mode: "index" },
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animation: {
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duration: 0,
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},
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plugins: {
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tooltip: {
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mode: "index",
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intersect: false,
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callbacks: {
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beforeFooter: (tooltipItem) => {
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let total = 0;
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tooltipItem.forEach(
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(item) => (total += parseInt(item.parsed.y || 0, 10))
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);
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return `= ${total}`;
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},
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title: (tooltipItem) =>
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moment(tooltipItem[0].label, "YYYY-MM-DD").format("LL"),
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},
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},
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},
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layout: {
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padding: {
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left: 0,
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top: 0,
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right: 0,
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bottom: 0,
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},
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},
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scales: {
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y: [
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{
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stacked: true,
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display: true,
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ticks: {
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callback: (label) => number(label),
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sampleSize: 5,
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maxRotation: 25,
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minRotation: 25,
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},
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},
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],
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x: [
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{
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display: true,
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gridLines: { display: false },
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type: "time",
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time: {
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unit: Report.unitForDatapoints(data.labels.length),
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},
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ticks: {
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sampleSize: 5,
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maxRotation: 50,
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minRotation: 50,
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},
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},
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],
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},
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},
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};
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},
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_resetChart() {
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this._chart?.destroy();
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this._chart = null;
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},
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});
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